Low-sand-content density flow physical model and test method thereof

Abstract

The invention relates to a low-sand-content density flow physical model and a test method thereof. The low-sand-content density flow physical model comprises a runner model, a clear water reservoir, afirst clear water orifice box, a first muddy water orifice box, a muddy water stirring tank, a low regulation and storage tank, a high regulation and storage tank and an outlet water storage tank. Anoutlet of the clear water reservoir communicates with an inlet of the first clear water orifice box; an outlet of the muddy water stirring tank communicates with an inlet of the first muddy water orifice box; and an outlet of the first clear water orifice box and an outlet of the first muddy water orifice box communicate with an inlet of the runner model. By designing the physical model of the water reservoir to be tested, evolution characteristics of the sand content of the water reservoir can be tested when water and sand are converged to form the low-sand-content density flow, so that theinfluence of the water and sand convergence on the water reservoir environment can be known.

Description

technical field [0001] The invention belongs to the technical field of reservoir density flow simulation tests, and in particular relates to a low-sand content density flow physical model and a test method thereof. Background technique [0002] The water replenishment project is one of the key engineering departments for the comprehensive management of the water environment in the basin. It can effectively increase the total amount of water resources and the capacity of the water environment, accelerate the circulation and exchange of lake water, and play a very important role in controlling the pollution of Chishui and improving the water environment. However, in the actual operation process, there is a significant increase in the sediment concentration of the flood season compared with the dry season, and the water body of the pump station is turbid. According to monitoring, when the sediment concentration is greater than 0.056kg / m 3 have significant impact on the water en...

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art, to provide a low sand content density flow physical model and its test method, to solve the inconvenience of detecting the density flow in the water environment of the reservoir in the prior art Problems that make it difficult to judge the impact on the reservoir environment when water and sand flow in

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